I'll try to explain as better as I can: I made some custom meta boxes and fields with ACF. Some of these are conditional: they are shown only when a specific category or taxonomy has been selected. So, when I check a category the related meta boxes appears. I guess this is done in ACF with some JQuery/AJAX script trick.
When I activate your plugin, the categories became radio buttons (that is what I want) but selecting one of these doesn't activate the related meta boxes anymore on-the-fly.
If you save the post with a radio button selected and then try to edit it, the related meta boxes are there, but it was helpful for me to have them on-the-fly just selecting the related category (you know, I work with many other users, so I need to have everything under control, since they have to strictly select just one category or taxonomy at time).
I really don't know what's the problem there, I guess it could be related to some ID or classes which broke the ACF JQuery script – which could have references to original WordPress ID/classes or their checkboxes ID/classes – but mine is just a thought. In fact I saw your plugin add "radio-" term in Category box, maybe this is the problem. Anyway I can provide you all the further information you need.
Thank you very much!